William morstatt



(No Model.)

W.v MORSTATT.

WINDOW. BLIND.

Patented Apr. 12, 1887..

RS. PIwloLflhngmpMr. Washington D. C,

UNITED STATES PATENT ()FFICE.

WILLIAMMORSTATT, or NEW YORK, N. Y.

WINDOW-BLIND.

SPECIFICATION forming part of Letters Patent No. 361,019. dated April12, 1887.

Application filed December G. 1886. Serial No. 220,783. (No model.)

To aZZ whom it may concern.-

Be it known that I, WILLIAM MORSTATT, of the city and county of NewYork, in the State of New York, have invented a new and usefulImprovement in Window-Blinds, of which the following is a specification.

My invention relates tothat class of blinds in which the series of slatshave, .in addition to their pivot-pins, by which they are supported inthe frame, pins which are eccentric to the pivot-pins, and a rod wherebythe several slats are through these eccentricpins connected together, sothat the slats will-be swung or moved simultaneously in opening andclosing them.

In a blind embodying'all the features of my invention I secure withinthe ordinary frame of the blind an inner frame, in which the pivwhere itis secured within the ordinary blindc tions of parts, hereinabovereferred to and frame. The several slats are connected by a rod, whichreceives pins eccentric to the pivots of the slats, and this rod workson the inner side of the inner frame. The eccentric pins, and also thepivots, are formed by metal pins driven into the ends of the slats, andone of the pivots is prolonged through the upright stile of the innerframe and has secured to it, on the outer side of the inner frame,apinion, with which engages a rack having a handle accessible at theface of the blind. The pinion and rack are arranged in a suitable recessin the outer surface of the inner frame, and are confined and protectedby a covering-plate secured to the inner frame. I term the pivotpin, onwhich is the pinion, and the slat in.

which it is driven, the master pivot and the master slat, becausethrough them the other slats are operated; and in order to give themaster pivot a better hold in its slat I prefer to'make the'portion ofthe pivot which is driven into the wood substantially round and providedwith longitudinal fins, which project from its round surface, and givethe pin a better hold in the wood than it would have if square or roundand plain.

The invention consists in novel combinahereinafterparticularlydescribed,aud pointed out in the claims.

In the accompanyingdrawings, Figure 1 is a face view of a blindembodying my invention. Fig; 2 is a transverse section upon the plane ofthe dotted line 00 m, Fig. 1. Fig. 3 is an exterior View of a portion ofthe inner frame upon a larger scale than Fig. 1, showing the mechanismwhereby the master slat of the blind is operated. Fig. 4 is a horizontalsection upon the plane of the dotted line y 3 Fig. 3. Fig. 5 is a sideview of a portion of a rod of novel construction, which connects theslats; and Fig. 6 is a transverse section of she rod.

Similar letters of reference designate corresponding parts in all thefigures.

' A designates an outer frame, which may be like the blind-frames inordinary use, save that no holes need be bored for the reception of theslat-pivots in the side stiles thereof; and B designates an inner frame,which is made externally of a size to fit snugly within the outer frame,A, and there secured.

When blinds are constructed according to my invention, I provide formaking the inner frame and all the parts which are contained therein foroperating the slats at the factory, and exactly to the innerdimensionsof any outer frame which are furnished, and then upon the arrival of theinner frame, with its contained mechanism, at the place where the blindis to be used it will only be necessary to place and secure it inposition within the driven into the end of the master slat O, I'

may term the master pivot, while the pins 0, which are driven into theremaining slats, constitute simple pivots. All the pivots c c areproperly journaled at b in the inner frame, B. It is through the masterpivot c of the master slat C that all the slats are operated, and

in order to give such master pivot a very firm hold in the wood of theslat O, I have shown it in Fig. 4 as provided with longitudinal fins orprojections c",which engage with the wood and prevent the pivot c frombecoming loose in the slat O, notwithstanding the slight strain which isexerted through said pivot in the direction to turn the slat. Theportion of the pivot c which is driven into the wood of the slat issubstantially round, and the longitudinal fins c, which may have anydesired projection from the round surface, give it a much more securehold in the slat than a square pin would have.

The slats C C are provided, in addition to their pivot-pins c c, withother pins, d,which are driven into their ends eccentric to thepivot-pins c c; and D designatesarod, extending lengthwise of theblind,and which receives the eccentric pins d of all the slats. It willtherefore be u nderstood that if a turning movement be transmittedthrough the master pivot c to the master slat G, such turning movementwill, through the rod D and eccentric pins d, be transmitted to all theslats C from the master slat. I have here shown a rod, D, as consistingofa strip of sheet metal having its opposite edge portions bentlongitudinally of the strip, so as to form parallel flanges 0 0,extending from the strip in the same direction. This rod isadvantageous,because it is of considerable thickness in its extremedimensions and is withal light and strong.

In my allowed application for Letters Patent, Serial No. 202,233, filedMay 15, 1886, I have described a rod consisting of astrip having itsedge portions folded or bent to form parallel flanges, and one of suchflanges has notches to receive the eccentric pins (2 when the slats areclosed, and which are similar to the notches 0 in the flanges 0, as mostclearly shown in Fig. 5. The rod D differs from that shown in my formerapplication in having the edge of the flange 0 rolled over or inward, asshown at 0' in Fig. 6 and in Fig. 4. This stiffens the rod and alsogives a better and broader surface to bear on the inner side of theinner frame, B.

Upon the outer end of the master pivot c, as shown in Fig. 4, is secureda pinion, e, with which engages a rack, 6, adapted to slide lengthwiseof the blind, and provided with a handle or hand-piece, e accessible atthe front or face of the blind. The outer side of the upright stile ofthe inner frame, B, is recessed at b to receive the pinion e, and awearing plate or disk of metal, I), may be inserted in the bottom ofsaid recess, as shown in Fig. 4, in order to reduce friction and enablethe pinion and the pivot which it controls to turn more easily. The saidupright stile of the inner frame, B, is, on its outer face or side,recessed, as shown at f, in Figs. 3 and 4, so as to accommodate the racke, and the rack and pinion are covered by an outer plate, 0, which is ofangular construction, so that its flange eoverlaps the front of theinner frame, B, as shown in Figs. 1 and 4. It will be seen from theabove description that by means of the handle or handpiece 6 a slidingmovement may be imparted to the rack e, and through the pinion e suchsliding movement of the rack will be converted into a rotary movement ofthe master pivot c and a corresponding turning of the master slat C.

It will be understood that through the rack c and the pinion c thehandle or hand-piece e is indirectly connected with the master pivot cof the master slat C.

It is advantageous to have the pinion e, the rack c, and thecovering-plate c all recessed into the outer side of the inner frame, B,because then the inner frame will have no projections beyond its plainoutline, and may, with all its contained mechanism, be inserted directlyinto an outer frame, made of proper size for it, without any preliminarycutting or fitting of said outer frame to receive the parts of theblind-operating mechanism.

It is obvious that instead of employing the rod D, of skeleton orbox'like construction, such as is shown in my aforesaid Letters Patent,a rod of other ordinary form may be employed.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with an outer frame and the inner frame, B, fittingtherein, of the slats O 0, having pivot-pins 0 cjournaled in the innerframe, the pivot-pin c. of the master slat 0' being extended through theupright stile of the inner frame, and having a pinion, e, secured uponit on the outer side of said inner frame, the eccentric pins din theslats, a rod connecting the eccentric pins of the slats and working onthe inner side of the frame B, and a rack engaging the pinion c andhaving a handle accessible at the face ofthe blind, substantially asherein described.

2. The combination, with the outer frame and the inner frame, B, fittingtherein and recessed on its outer side at b f, of the slats 0, providedwith pivots cc and eccentric pins d, inserted directly into their ends,the rod D. connecting'theeccentric pins of the several slats O, a pinionsecured upon thepivot of one slat, a. rack engaging the pinion andprovided with a handleaccessible at the face of the blind, the rack andpinion being arranged in the recess b f on the outer side of the innerframe, and a cover-plate, 6, applied over the recess Iff and confiningthe pinion and rack, substantially as herein described.

3. The combination, with a blind-frame, of the slats having their mainpivots and the cocentric pins d, and the operating-rod D, having thelongitudinal flanges 0 o, the flanges 0 being notched to pass over thepins (1, and the flange 0 having its edge rolled over or inward,substantially as herein described.

\VILLIAM MORSIAT'P.

Witnesses:

MINERT LINDEMAN, FREDK. HAYNES.

ICIO

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